Prior to me playing bass, my older brother played a bit a few years back, though he never really had the time to get into it fully. He had an Ibanez SR305DX that he loved, but had to sell it and the amp when kids came along. I recently picked up an SR400 for $40 with a bad preamp, but good pickups and great action. As an early birthday/late Christmas present, I was going to fix this up and give it to him, along with a practice amp I've got laying around and a copy of Rocksmith with the bass package so he can get back into it. I'll also hang out and jam sometimes to help him pick it up again but I wanted to gather opinions on what to do with the SR400 before I give it to him to fix the preamp?